That would also suggest not welding the seams together if they are flexing, but do they really have to and how much do they really flex/expand/contract?  That would also effect the seam sealer choice if it's considerably, which I highly doubt would be the case.

Joel

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Stuart MacMillan
Sent: Wednesday, November 21, 2012 12:07 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: seam sealer

Yes, automotive seam sealer sticks better and flexes more so it doesn't detach or crack. Those panels do flex, and the seam opens and closes slightly. And, it's sandable and paintable.

Stuart